Manchester United have received a boost to their hopes of beating Paris Saint German and re-signing the Madrid superstar in a world record deal from ex-Madrid president Ramon Calderon who talked up Ronaldo’s love for his former club.

Ronaldo, 32, has made an ‘irreversible’ decision to leave Madrid after being accused of tax fraud worth £13m and has urged his agent Jorge Mendes to secure him a stunning return to Old Trafford.

Calderon said: “He is very strong-minded and when he decides something he goes through with it. The point now is whether he really has decided to leave.

Cristiano Ronaldo is currently on Portugal duty (Image: AFP)

Cristiano Ronaldo is under investigation for tax fraud (Image: AFP)

“He likes Manchester United - that is something we all know. One year before he was going to come, he told me that he was really grateful to Manchester United, the fans, the people there, his teammates - everything in the city.”

Real boss Zinedine Zidane has called Ronaldo pleading with him to stay following last week’s revelations that his star man wants out.

And Calderon warned the Portugal captain will be irreplaceable and should not be sold for any price.

He said: “It would be a big mistake if (president) Florentino Pérez doesn’t try to keep him with us.

“He has broken all the records at the club, he has got three Champions Leagues in four years and La Liga this year. He has been a very important player.

Cristiano Ronaldo scored twice in the Champions League final - which could be his last Real appearance (Image: AFP)